The 10kV/27.5kV load switch (cabinet) is a high-voltage switchgear used for the protection and isolation of small-current faults in transformers used at 10kV or 27.5kV; the load switch cabinet integrates the isolated load switch body, the operating mechanism and the supporting intelligent control device in one. The load switch (cabinet) is divided into AIS type and GIS type, which can realize the functions of high-sensitivity protection, flexible throwing and withdrawing and fast isolation of transformers used at 10kV or 27.5kV in traction substation facilities such as traction substation, partition substation, opening and closing substation and AT substation.